Andrew Roberts is an English historian and journalist. Educated at Gonville and Caius College, Cambridge, where he earned a first-class degree in modern history and a PhD, he is a Visiting Professor at the Department of War Studies, King's College London, a Roger and Martha Mertz Visiting Research Fellow at the Hoover Institution at Stanford University and a Lehrman Institute Distinguished Lecturer at the New-York Historical Society. He has been a trustee of the National Portrait Gallery, London since 2013.